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Math Help - Find lub and glb..

  1. #1
    Member kjchauhan's Avatar
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    Find lub and glb..

    Please explain me how to find lub and glb of the sets (-1,1), [2,5) and {pi+1,pi+2,pi+3,.....}
    Please help..
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  2. #2
    MHF Contributor Drexel28's Avatar
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    Quote Originally Posted by kjchauhan View Post
    Please explain me how to find lub and glb of the sets (-1,1), [2,5) and {pi+1,pi+2,pi+3,.....}
    Please help..
    If you are just trying to find them this is simple. \sup\text{ }(-1,1)=1, \sup\text{ }[2,5)=5 and the supremum of \left\{\pi+n:n\in\mathbb{N}\right\} does not exist since the set is unbounded from above.
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